| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | France | 2 | |
| #3 | United States | 2 | |
| #4 | Switzerland | 1 | |
| #5 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Percussive tools | |
| #3 | Dredging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klemm Guenter Dipl Ing | 7 |
| #2 | Klemm Guenter | 4 |
| #3 | Klemm Gunter | 3 |
| #4 | Klemm Guenter Wenkhausen | 1 |
| #5 | Klemm Guenter Dipl-Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3228737C1 | Auger drill | |
| DE3217572A1 | Apparatus for loosening rock | |
| DE3215575A1 | Large-hole drilling device | |
| DE3151167A1 | Drill bit | |
| DE3115361A1 | Hydraulic percussion device | |
| DE3109367A1 | DRILLING TOOL | |
| DE3103856A1 | Hydraulic percussion device | |
| DE3024218A1 | Cluster down-the-hole drill - for large-dia. wells with separate rotation of each hammer superimposed to common rotation | |
| DE2902736A1 | Rotary percussive drill rig - with saline coupling between shank end and air or water swivel | |
| DE2854461A1 | RING DRILLING HAMMER |